Fross Zelnick

Fross Zelnick Lehrman & Zissu, P.C. is an intellectual property boutique concentrating exclusively on trademark, copyright, design patent and related work. The firm, which has practised for more than five decades, employs nearly 50 attorneys across two offices, in New York and Washington, DC. Its practice is divided between litigation and a transactional and advisory side covering clearance, registration, enforcement and deals. The firm says its clients include the world's most celebrated brands and content providers, spanning fashion, entertainment, consumer products, pharmaceuticals and technology.

IP litigation is a core offering, with an emphasis on courtroom advocacy alongside negotiated settlements. The trademark and copyright group handles clearance, registration, enforcement and transactions for both international and domestic matters. Two further groups round out the practice: a dedicated team for startups and emerging growth companies, and a data privacy group established in 2024 to address compliance and litigation risk in that field.

The firm is ranked by Chambers, Legal 500 and U.S. News & World Report. Its work is confined to intellectual property and adjacent areas of law, combining litigation advocacy with strategic, business-minded counsel.